Simplify the radical.
A. -8
B. 22.627
C. 11.314
D. not a real number
Answer: A
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Find the vertices and the foci of the given ellipse.
+ 
= 1
A. V: (-25, 0), (25, 0); F: (-20, 0), (20, 0) B. V: (0, -25), (0, 25); F: (0, -20), (0, 20) C. V: (0, -25), (0, 25); F: (0, -15), (0, 15) D. V: (-25, 0), (25, 0); F: (-15, 0), (15, 0)
For the given functions f and g , find the indicated composition.f(x) = 
, g(x) = 8x - 14(f?g)(x)
A. 2
B. 2
C. 8
- 14
D. 8
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.a2 - 2a - 63
A. (a - 9)(a + 7) B. (a + 9)(a + 1) C. (a + 9)(a + 7) D. Prime
Solve the problem.The width of a rectangular stamp is 1.10 cm greater than the length. If the width and length are both increased by 1.0 cm, the stamp would have a perimeter equal to 18.20 cm. What are the actual dimensions of the stamp?
A. 3.50 cm × 4.05 cm B. 3.00 cm × 4.10 cm C. 7.00 cm × 8.10 cm D. 3.00 cm × 8.20 cm